Star Rail Calculator · Materials

Past Evils of the Borehole Planet Disaster 4★ material

Where to get it

A weekly boss material — up to 3 per week.

Characters who need it (12 characters · full build)

Character	Element	Qty
Acheron	Lightning	16
Aventurine	Imaginary	16
Black Swan	Wind	16
Dr. Ratio	Imaginary	16
Robin	Physical	16
Ruan Mei	Ice	16
Sparkle	Quantum	16
Trailblazer	Imaginary	16
Trailblazer	Imaginary	16
Gallagher	Fire	16
Misha	Ice	16
Xueyi	Quantum	16

FAQ

Where do I get Past Evils of the Borehole Planet Disaster?

A weekly boss material — up to 3 per week.

How many characters need Past Evils of the Borehole Planet Disaster?

12 characters use it; the biggest demand is Acheron (16).

To calculate your characters, use the Star Rail Calculator.

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